2026 NPPES data Nephrology Physician NPI 1942237649 MD
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JOSEPH ANZALONE, MD

Nephrology Physician in WENATCHEE, Washington. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
907
Medicare Part D claims · 172 beneficiaries · Nephrology Physician avg: 1K

What the federal data shows

JOSEPH ANZALONE, MD filed 907 Medicare Part D claims in 2023 as a Nephrology Physician in WENATCHEE, Washington.

907
Part D claims, 2023
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

JOSEPH ANZALONE, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

907 Top 25% higher than 75% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). This entry sits in this band. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

JOSEPH ANZALONE, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about JOSEPH ANZALONE, MD?

Quality data not reported

NPI registry status

Active

Issued 06/27/2006

NPI 1942237649

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

907 38% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

Specialty distribution in Washington

How Nephrology Physician compares to other specialties among Washington providers

Washington providers

Nephrology Physician share within Washington

1. Nephrology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Nephrology Physician share within Washington

Specialty board-certification context

Estimated specialty board-certified rate — Nephrology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Nephrology Physician ABMS/AOA estimate

Est. board-certified rate (Nephrology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Nephrology Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

JOSEPH ANZALONE, MD appears in the CMS NPPES registry as a Nephrology Physician provider holding MD credentials at 820 N CHELAN AVE, WENATCHEE, WA, 98801, with a listed phone of (509) 663-8711. NPI 1942237649 was issued on 06/27/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ANZALONE most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 907 prescription claims written by this provider, covering 172 Medicare beneficiaries and totaling roughly $254K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Nephrology Physician is a mid-sized specialty nationwide, with 10,534 enrolled providers across 55 states and an average of 1,454 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

820 N CHELAN AVE
WENATCHEE, WA 98801

Provider Details

NPI 1942237649
Specialty Nephrology Physician
Credentials MD
Gender Male
NPI Issued 06/27/2006

Hospital and facility affiliations

Facilities where JOSEPH ANZALONE, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

CENTRAL WASHINGTON HEALTH SERVICES ASSOCIATION
WENATCHEE, WA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — Washington WMC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~34K Washington medical licensees in 2023 — they are NOT specific to JOSEPH ANZALONE, MD. To verify JOSEPH ANZALONE, MD's current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases

WMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

907
Total Claims
$254K
Total Drug Cost
172
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,570
Total Day Supply
45,457
Generic Drug Cost
$113K

Patient Demographics

Average Patient Age
69.0 years
Avg HCC Risk Score
4.70
Gender Split
34% female / 66% male
Age Distribution
<65: 46, 65-74: 70, 75-84: 44, 85+: 12

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What JOSEPH ANZALONE, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Sevelamer Carbonate
92
Amlodipine Besylate
72
Lisinopril
69
Losartan Potassium
52
Clonidine
45
Furosemide
42
Velphoro
Sucroferric Oxyhydroxide
39
Atenolol
24
Lanthanum Carbonate
24
Prosol
Parenteral Amino Acid 20% No.1
24

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Nephrology Physician Overview

How JOSEPH ANZALONE, MD fits within the Nephrology Physician landscape nationally.

10,534
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider

JOSEPH ANZALONE, MD's 907 claims are below the specialty average of 1,454.

Nearby Nephrology Physician Providers in Washington

Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as ANZALONE.

Compare Nephrology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JOSEPH ANZALONE, MD's specialty?
JOSEPH ANZALONE, MD specializes in Nephrology Physician and practices in WENATCHEE, Washington. Credentials: MD.
How much does JOSEPH ANZALONE, MD prescribe under Medicare Part D?
In 2023, JOSEPH ANZALONE, MD wrote 907 Medicare Part D claims totaling $254K in drug costs for 172 beneficiaries.
Where is JOSEPH ANZALONE, MD located?
JOSEPH ANZALONE, MD is located at 820 N CHELAN AVE, WENATCHEE, WA, 98801. Phone: (509) 663-8711.
What is JOSEPH ANZALONE, MD's NPI number?
JOSEPH ANZALONE, MD's National Provider Identifier (NPI) is 1942237649, issued on 06/27/2006.
How many Nephrology Physician providers are there in the US?
There are 10,534 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does JOSEPH ANZALONE, MD prescribe most often?
Based on 2023 Medicare Part D data, JOSEPH ANZALONE, MD's most frequently prescribed drugs include Sevelamer Carbonate, Amlodipine Besylate, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOSEPH ANZALONE, MD accept Medicare?
JOSEPH ANZALONE, MD appears in CMS Medicare data with 907 Part D claims and 172 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOSEPH ANZALONE, MD's credentials?
JOSEPH ANZALONE, MD's NPI is 1942237649 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology